Why is compiling an old familiar soundtrack in sync and music supervision considered such a good thing?

Why is compiling an old familiar soundtrack in sync and music supervision considered such a good thing?

Something that always really annoys me in sync (but, admittedly, never seems to bother other film fans who aren’t “in music”) is when I hear classic major artists and hits, being used again (and again, and again). Whenever I’ve watched a movie and I feel a bit miffed that I’ve heard all of the artists…